title: Core disgust and moral disgust are related to distinct spatiotemporal patterns of neural processing: an event-related potential study.
abstract: Core disgust is thought to rely more on sensory and perceptual processes, whereas moral disgust is thought to rely more on social evaluation processes. However, little is known about the neurocognitive mechanisms underlying these two types of disgust. We recorded event-related potentials (ERPs) from participants while they performed a lexical decision task in which core- and moral-disgust words were intermixed with neutral words and pseudowords. Lexical judgment was faster for coredisgust words and slower for moral-disgust words, relative to the neutral words. Core-disgust words, relative to neutral words, elicited a larger early posterior negative (EPN), a larger N320, a smaller N400, and a larger late positive component (LPC), whereas moral disgust words elicited a smaller N320 and a larger N400 than neutral words. These results suggest that the N320 and N400 components are particularly sensitive to the neurocognitive processes that overlap in processing both core and moral disgust, whereas the EPN and LPC may reflect process that are particularly sensitive to core disgust.
authors.affiliation: Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Southwest University, 400715, China; School of Psychology, Southwest University, Chongqing 400715, China; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, The Netherlands.
authors.forename: Yu
authors.initials: Y
authors.lastname: Luo
authors.forename: Weilin
authors.initials: W
authors.lastname: Shen
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ting-yong
authors.initials: TY
authors.lastname: Feng
authors.forename: Hao
authors.initials: H
authors.lastname: Huang
authors.forename: Hong
authors.initials: H
authors.lastname: Li
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D003657:Decision Making; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009014:Morals; D010775:Photic Stimulation; D011930:Reaction Time; D012660:Semantics; D014825:Vocabulary; D055815:Young Adult
keywords: Core disgust; EPN; Emotional word; Moral disgust; N400